Hello, we use our Sophos UTM as a SMTP Relay in front of our Exchange Servers. We have several Web applications that are hosted elsewhere an that use our Sophos as SMTP Relay - all of them figure in the list of "Allowed Hosts/Networks" under Host…

Hi, we have a couple devices (like notifications from our Anti-Virus Server or Printers) that need to send Mails to Office 365. I already created a Firewall Rule that allows traffic on the ports 25,465 and 587. I also tried rules like "HOST" -> ANY…